Insert into t (a) values (unistr('\00d6')) > insert into t (a) values (unistr('\00d6')) Now, if we try to insert into our table a single character that is 2 bytes long in UTF, we observe the following: Notice that we're performing this test on a multibyte character set database using the character set A元2UTF8, which supports the latest version of the Unicode standard and encodes characters in a variable length fashion using from 1 to 4 bytes for each character: We'll create a table with three columns, the first two of which will be 1 byte and one character, respectively, with the last column being 4,000 characters. The following small example demonstrates the differences between BYTE and CHAR and how the upper bounds come into play. Oracle Database - Bytes or Characters for VARCHAR2 and CHAR Oradb Example How To Detect Read From Temp.Methodology For Designing And Building The Materialized Views.Methodology For Defining The Analytic Workspace.
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